How to Modify and Reassemble a NERF Raider CS-35 for More Power and Range. : 7 Steps - Instructables
Amazon.com: Nerf Rampage N-Strike Elite Toy Blaster with 25 Dart Drum Slam Fire for Kids, Teens, & Adults (Amazon Exclusive) : Hasbro - Import: Toys & Games
Blasterparts - Modification spring for NERF Raider CS-35 - blasterparts.com